I need help ASAP ??????,???????!!!!!!!!!

Mathematics

1 answer:

Harman [31]3 years ago

4 0

Answer: My answer would be

Step-by-step explanation:

I believe it's D. because they both match up at day 3.

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Use the quadratic function f(x) = 2x2 + 4x +3 to answer the following questions.

GuDViN [60]

The vertex is (-1,1)

Explanation

The vertex formula to find the x coordinate of the formula is -b/2a

So we plug in the values into the formula which is

-4/2(2)

Simplify it

-4/4
=-1
-1 is now the x cord of the vertex.

So now we will plug in the x into the quadratic equation which is 2x^2+4x+3

2(-1)^2 + 4(-1) + 3 = 2 -4 +3

Simplify it

5 - 4= 1

Y=1
So the Coordinates of the vertex is (-1,1)

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3 years ago

Find two number closest to 5000 that are divisible by 36,21,and 12

Pavlova-9 [17]

1,008 hope this helps

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3 years ago

Which of the following is not an equivalent expression to -12 - 7x?

Georgia [21]

-7x + 12 is not an equiv. expression because one of the - signs in the original expression has been changed to +.

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3 years ago

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1. Value-Mart is advertising a Back-to-School sale on pencils. A pack of 24 sells

andrey2020 [161]

Answer:

24 because you get more pencils to use in case one breaks.

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3 years ago

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Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credi

zalisa [80]

Answer:

The circle is of radius $5$ and is centered at $(-1,\, -2)$ .

Step-by-step explanation:

Equation for a circle of radius $r$ ( $r > 0$ ) and center $(a,\, b)$ :

$(x - a)^{2} + (y - b)^{2} = r^2$ .

Expand and rearrange to obtain an equivalent equation:

$\left(x^2 - 2\, a\, x + a^{2}\right) + \left(y^2 - 2\, b\, y + b^2\right) = r^{2}$ .

$x^2+ (-2\, a)\, x + y^2 + (-2\, b)\, y = r^2 - (a^2 + b^2)$ .

Compare this equation with the equation of the circle in this question:

Coefficient of the $x$ term: $2$ in the original equation, $(-2\, a)$ in the proposed equation.
Coefficient of the $y$ term: $4$ in the original equation, $(-2\, b)$ in the proposed equation.
Constant term: $20$ in the original equation, $\left(r^2 - \left(a^2 + b^2 \right)\right)$ in the proposed equation.